<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>select</title>
</head>
<body>
<select id="select_value">
    <option value="1">val1</option>
    <option value="2">val2</option>
    <option value="3">val3</option>
</select>
</body>
</html>